Questions Based on High Order Thinking Skills (HOTS)A student did an experiment with a convex lens. He put an object at different distances 25 cm, 30 cm, 40 cm,60 cm and 120 cm from the lens. In each case he measured the distance of the image from the lens. Haresults were 100 cm, 24 cm, 60 cm, 30 cm and 40 cm, respectively. Unfortunately his results are written inwrong order.(a) Rewrite the image distances in the correct order(b) What would be the image distance if the object distance was 90 cm?(c) Which of the object distances gives the biggest image?(d) What is the focal length of this lens ?42. A magnifying lens has a focal length of 100 mm. An object whose size is 16 mm is placed at some distancefrom the lens so that an image is formed at a distance of 25 cm in front of the lens.(a) What is the distance between the object and the lens ?(b) Where should the object be placed if the image is to form at infinity ?43. A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm,find the focal length of the lens.​